Lock



M. FLEISHER.

LOCK.

APPLICATION FILED FEB. 24. I920.

1,359,347, I Patented Nov. 16, 1920.

UNITED STATES PATEN oF lcE.

MAX FLEISHER, of NEW YORK, N. Y.

LdCK.

locks at present constructed, and adapted for efiective use on doors,safes or other places where locks are needed.

It is also an object of this invention to produce a lock having aplurality of simultaneously actuated bolts working in conjunction with astraddle yoke and partly inclosed keeper. Y

An additional object isto produce a lock having a simple and efficientroll-back and tumbler catch combination employed to actuate the severalbolts.

With the above principal objects an othersin view, the invention hasrelation to the combination and arrangement of simplified lock parts,several variations in design and construction of which appear in theappended claims defining the invention, and

one embodiment of which is described in the 1 following specificationand illustrated in the accompanying drawings, wherein:

Figure 1 illustrates the lock casmg and keeper parts insection todisclose the interior working mechanism of the lock.

Fig. 2 discloses a sectional view as ap proximately taken .on the line2-2 of Fig. 1. Fig. 3 shows a cross-sectional view taken on the line33of Fig. 1. v

A look constructed in accordance with the plans of this inventionincludes a casing having an integral straddle yoke adapted to fit overand partly inclose a keeper. A plu rality of bolts are simultaneouslythrust through the straddle yoke and keeper to ef- A feet a positivelockedposition. A bolt frame carries the several bolts, and likewisecarries a tumbler catch pivoted thereto. A roll-' back is associatedwith the tumbler catch to operate the lock. Other novel features ofconstruction and advantages of this look will appear in the followingdetail specification.

In presenting a more comprehensible and detailed disclosure of myinvention, there is Specification of Letters I at'ent. Patented Nov,16,1920 Application filed February 24, 1920. Serial No. 360,772. 7

' move and retract during the locking and I The yoke 8 is T lockingoperation thereof. formed as a single-piece element integral with thecasing 6 by making the web '8, which forms the straddle yoke, in spacedand parallel relation to the front edge of the lock casing. The frontedge of the lock casing 6 is likewise provided with bores for thereception of bolts, which allows the bolts to actuate in the lock casingand move for- I wardly therefrom within the'bore 9 of the straddle yoke,

, The keeper is made with angle plates 10 to anchor itto the doorcasing, and this keeper has an integral web 11 projecting from the faceof the outer angle plate and registering within the opening of thestraddle yoke,-

The web 11 is provided with bores 12 equal in number to and concentricwith the bores of the straddle yoke and the lock casing all I of whichare brought into alinement when the lock casing is moved into registrywith the web. v

A bolt frame 14 has integral lugs 15 slidably confined within the guides7 so that the frame may be moved vloack'and forth within I the lockcasing and confined in proper'working relation through the agency of theguides supporting and confining the lugs.

A numberof bolts 16 are fixed to the bolt frame and confined in thebores in the end wall of the casing 6. The bolt frame 14 has an "arm 17extending back from the frame and approximately parallel with the axisof the bolts 16. It is seen how longitudinal movement impressed againstthe arm 17 will likewise move the bolts 16 outwardly and inwardlyrelative to the end wall of the I lockv casing 7 A'tumbler catch 19 isplaced alongside the arm 17 and pivoted on the outer end thereof on. apin 20 passed through both the tumbler catch and the arm. Thisconstruction joins the tumbler catch 19v and arm 17 together" butpermits one end of the tumbler catch to move up and down on the pivotpin 20 relatively to the arm. The'tumbler catch is providedv with aroll-back-notch 21 anda L the wall of the casing in line with thetumbler catch 19 and is engageable by the lock notch 22 when the tumblercatch is lifted and driven forward to effect a locked posi: tion. One ormore springs 24 are fixed to the casing and press downwardly on theupper face of the tumbler cat-ch to restrain it in downwardly limitedposition. The lock pin 23 is indirect line with the end of the tumblercatch and prevents accidental movement of the lock parts by acting as astop against the tumbler catch.

A roll-back cylinder 26 is pivotally mounted on the casing and has anupstanding finger 27 lying within the roll back notch 21. The roll-backcylinder 26 is connected in any suitable manner with the cylinder lock28 which is mortised within the door upon which the lock is installed.The

cylinder lock 28 may be made in any ap-- proved design in accordancewith recognized lock construction. The cylinder lock 28 has connectionwith the roll-back cylinder 26 in such a manner that a key when insertedinto the lock cylinder. will establish a fixed connection between thecylinder 28 and the rollback 26 in order that said roll-back may berotated in either direction. A knurled knob 5 is -'rotatably carried inthe wall of the casing 6 and connects with the roll-back 26. The knob 5may be ofany approved construction and is used for opening and closingthe lock and door from the inside of the compartment secured by thelock.

In the operation of the lock, a key is inserted in the cylinder lock 28in the usual manner, and if the proper key is used there is establisheda joined relation between the roll-back cylinder26 and the key, whichenables the owner of the key to rotate the roll-back 26, therebyswinging the finger 27 upwardly against the lower edge of the tumblercatch to lift into ivotal motion about the pin 20. After the 'nger 27has reached an upright position it .moves into engagement against thevertical face of the notch 21, whereupon the finger impresses a forwardmotionagainst the tumbler catch which is transmitted to the arm 17 tomove the bolts 16 forwardly into the bores 12 of the keeper and bores 9of the straddle yoke. This bolt action thus anchors the lock casing 6 tothe keeper 10 by establishing an overlapping and hooked kee the frontend of the catch engagementbetween the straddle yoke and the keeper.Simultaneously with the above described action, the lock tumbler 19drops into engagement with the lock pin 23 by virtue of the lock notch22 becoming hooked over the pin 23, whereupon the bolts 16 are anchoredin secured relation with the keeper and incapable of being forcedtherefrom.

The device isunlocked by inserting the key in the cylinder lock toestablish a connected relation with the roll-back 26, whereupon thetumbler catch 19 is lifted out of engagement with the lock pin 23, whichpermits the finger 27 to retract the bolts 16 within the lock casing,thus disengaging the er to permit the door to be opened. aving thusdescribed my invention, I desire to secure by Letters Patent:

1. A look, comprising a casing having guides provided in the form of atrack within the casing, a frame slidably retained in the track, -boltscarried by the frame, a tumbler catch pivoted on. the frame, saidtumbler catch provided with a roll-back notch and a lock notch, a lockpin anchored to the casing in line with the tumbler catch to hold thetumbler catch and connecting bolts in fixed position, and a pair ofoppositely turned springs fixed at one end of the casing, and engagingsaid tumbler catch at the other end so as to maintain said catch intoengagement with said pin.

2. A look comprising a casing having a number of bores made in the endwall therenecting the bolts, a guide to hold the frame in correctoperating position, an arm attached to the frame, a'tumbler catchpivoted on the arm andhavin'g notches formed therein, a lok pin anchoredto the wall of the casing line with the tumbler catch to preventaccidental movement of the lock parts, a roll-back cylinder pivoted onthe lock casing adjacent thetumbler catch, a finger fixed to theroll-back cylinder and confined in the notch of the tumbler catch tolift said catch above the aforesaid lock pin to-manipulate the bolt toretracted and'projected position, and a pair of oppositely turnedsprings fixed at one end to the casing, and engaging'said tumbler catchat the other end so as to maintain said catch into engagement with saidpin.

MAX FLEISHER.

